The Up in the Air actress has starred as Jessica Stanley in the teen-vampire movie adaptations, but will not appear in the final film, Breaking Dawn - Part 2, when it is released this year.
Kendrick explained that she is glad not to be involved in the project, because she previously revealed information about the films by accident during interviews.
"It's a relief not to have to transverse into the murky waters of talking about Twilight," she told BBC Breakfast.
"I know nothing about the next one, I can't spoil anything and I'm looking forward to watching it."
Kendrick currently stars in the ensemble romantic comedy What to Expect When You're Expecting opposite Jennifer Lopez, whom she described as "beautiful".
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She said: "They flew me into Atlanta just for the purpose of walking into the frame of Jennifer's scene.
"She's so beautiful it makes your head want to explode."
The actress also stated that the film is a "pro-dad" story, unlike other TV shows and films in the past.
"It's a movie that's pro-men and dads. There's instances in films and TV where dads are not being present, and are dead-beat dads. But this is a pro-dad film."
Breaking Dawn - Part 2 will debut in cinemas on November 16, while What to Expect When You're Expecting opens in the UK on Friday, May 25.
Watch the trailer for What to Expect When You're Expecting below: